EP 2293124 A1 20110309 - Light guide panel and display device employing the same
Title (en)
Light guide panel and display device employing the same
Title (de)
Plattenförmiger Lichtleiter und Anzeigevorrichtung mit dem Lichtleiter
Title (fr)
Panneau guide de lumière et dispositif d'affichage
Publication
Application
Priority
- EP 06254308 A 20060816
- KR 20060004479 A 20060116
Abstract (en)
Provided are a light guide panel and a display device employing the same. The light guide panel includes: an incidence surface facing a plurality of light sources separated apart a predetermined distance; at least one dark portion reducing unit that is formed on the incidence surface between adjacent pairs of the slight sources and at both edges of the incidence surface, and reflects the light incident from the light sources to reduce the creation of dark portion units; an upper surface transmitting a portion of incident light and reflecting the rest of the incident light; and a lower surface facing the upper surface and reflecting the light incident from the incidence surfaces and dark portion reducing units. The light guide panel includes the dark portion reducing units to reduce the distance between the light source and the light source and thus reduce the size of a useless portion of a screen caused by dark portions.
IPC 8 full level
CPC (source: EP KR US)
F24F 6/14 (2013.01 - KR); G02B 6/0011 (2013.01 - EP US); G02B 6/0016 (2013.01 - EP US); G02B 6/0018 (2013.01 - EP US); Y10S 385/901 (2013.01 - EP US)
Citation (search report)
- [XY] US 2004207775 A1 20041021 - MIN JEE-HONG [KR], et al
- [X] JP 2001023423 A 20010126 - CITIZEN ELECTRONICS
- [Y] EP 1521229 A2 20050406 - SIEMENS AG [DE]
- [X] US 2004071437 A1 20040415 - TAMURA YUUKI [JP], et al
- [X] DMITRI NESTERENKO ET AL: "40.4: Design and Analysis of Tapered Waveguides as Collimators for LED Backlighting", 2005 SID INTERNATIONAL SYMPOSIUM. BOSTON, MA, MAY 24 - 27, 2005, SID INTERNATIONAL SYMPOSIUM, SAN JOSE, CA : SID, US, 24 May 2005 (2005-05-24), pages 1388 - 1391, XP007012309
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 1808716 A1 20070718; EP 1808716 B1 20120418; CN 101004253 A 20070725; CN 101004253 B 20130102; EP 2293124 A1 20110309; EP 2293124 B1 20150408; JP 2007194214 A 20070802; JP 5130434 B2 20130130; KR 100790857 B1 20080103; KR 20070075813 A 20070724; US 2007165423 A1 20070719; US 7573543 B2 20090811
DOCDB simple family (application)
EP 06254308 A 20060816; CN 200610125693 A 20060831; EP 10186058 A 20060816; JP 2007006286 A 20070115; KR 20060004479 A 20060116; US 50589606 A 20060818